1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
taurus [48]
3 years ago
5

Evaluate -x+4x when x=-2

Mathematics
2 answers:
snow_lady [41]3 years ago
8 0

Use the substitution method

-x+4x  when x=-2

-(-2)+4(-2)  Positive number * ( multiplying)Negative number=Negative number

2-8

=-6

Answer is -6

xenn [34]3 years ago
3 0
The answer is -6. The explanation is shown in the picture.

You might be interested in
) The monthly income of A is double than that of B and the m is treble than that of c. if the total income of three persons is R
Anika [276]

Answer:

nai malaai tah chaina timi auchau vana vaanav auu auu auu hai nai malai tah chaina

hope it will helo i didnt know in english but you can so

5 0
3 years ago
Area of triangle=42, the width is x+3 and the length is 2x+8, find the value of x
beks73 [17]

Step-by-step explanation:

Area of triangle = 1/2 × the width × the length

42 = 1/2(x+3)(2x+8)

42 = 1/2×2×(x+3)(x+4)

42 = (x+3)(x+4)

(x+3)(x+4) = 42

x² + 7x + 12 = 42

x² + 7x + 12 - 42 = 0

x² + 7x - 30 = 0

(x-3)(x+10) = 0

x = 3, -10

x can't be -10 because the width and the length should be only + values

x = 3

8 0
3 years ago
Kenny had a total of 140 minutes to read, do homework, and play video games. he spent x minutes reading. he spent 2(x + 5) minut
Mekhanik [1.2K]

Answer:

35 min

Step-by-step explanation:

given that the total time spent is 140min

and that the time spent reading is x minutes

and also that the time spent doing home work is 2(x+5)

the time spent playing video game is 25

the expression for the total time is given as

total = reading +homework +video game

140=x+2(x+5)+25

solving for x we have

140=x+2x+10+25

140=3x+35

140-35=3x

105=3x

x=105/3

x=35

kenny spent 35 min reading

3 0
3 years ago
Simplify y 2 + 4y - 16y + 3y 2.
algol13
First, add or subtract all variables
y2 + 4y - 16y + 3y = -7y
-7y + 2 is your answer 
5 0
3 years ago
Read 2 more answers
10/16 x 2/16 = 12/16 in multiplication form
ivann1987 [24]

Correct answer:

5/64

Step-by-step explanation:

  1. Multiply the numerators: 10 × 2 = 20
  2. 16 × 16 = 256
  3. Put them together: 20/256
  4. Simplify: 20/256 = 5/64

I hope this helps!

3 0
3 years ago
Other questions:
  • (1) - (3)<br><br> (-5) (-6)<br><br> =
    11·1 answer
  • If my bill was 58.65? and the tip was 15% how much would I pay
    10·1 answer
  • Which of the following pairs have the first function positive and the second function negative in the third quadrant?
    5·2 answers
  • A railroad crew can lay 7 miles of track each day. They need to lay 203 miles of track. The length, L (in miles), that is left t
    10·1 answer
  • If a procedure meets all of the conditions of a binomial distribution except the number of trials is not​ fixed, then the geomet
    13·1 answer
  • A _____________ places points on the opposite side like a mirrored image.
    5·2 answers
  • There will be 1,398 students attending the assembly. During the assembly, our principal is going to be passing out 4 pieces of p
    10·1 answer
  • Please look at the picture and help me with this question
    11·1 answer
  • Use the Distributive Property to evaluate the expression.
    7·2 answers
  • Change 3/8 to percent
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!